Refinement of interpolated signals
US6826584B1 · kind B1 · utility
6Cited by
10References
12Claims
0Family size
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Key dates
| Filing date | Dec 22, 2000 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Sep 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/0135
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method including decimating a signal x using a filter f to obtain a decimated signal y, interpolating the decimated signal y to obtain a reconstructed signal z, determining a refinement factor s by decimating z and comparing decimated z to the decimated signal y, and determining an improved reconstructed signal r by using the refinement factor s, the filter f, and the reconstructed signal z is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.